I am testing a custom url shortener (using Yourls). When I preview an url in the Card Vaildator, the images and data get pulled up properly (various websites tested) but when I actually post the tweet, only the url link that I enter is shows up. Here is the info:
Entered in Card Validator: http://seoyg.com/b
INFO: Page fetched successfully
INFO: 34 metatags were found
INFO: twitter:card = summary_large_image tag found
INFO: Card loaded successfully
WARN: this card is redirected to http://www.theplaidzebra.com/steps-to-a-happy-healthier-brain/
When posted as an actual tweet, only ‘seoyg.com/b’ is displayed.